Google Caffeine Going Live
Google Caffeine when announced first back in August created the strong buzz among Online community, SEO folks, website owner's and many people started comparing their rankings with Caffeine and Universal Search. Too some Google Caffeine results were exciting and too many they didn't experienced much changes, but all were on same page regarding Caffeine quick, faster and accurate results, also the crawling were increased to much larger extent with relevant results.
Google made the Caffeine available to Power Searches and all other people till today at http://www2.sandbox.google.com/

Today I found Google Caffeine says:-"We appreciate all the feedback from people who searched on our Caffeine sandbox.

Based on the success we've seen, we believe Caffeine is ready for a larger audience. Soon we will activate Caffeine more widely, beginning with one data center. This sandbox is no longer necessary and has been retired, but we appreciate the testing and positive input that webmasters and publishers have given."

It’s official, Google Caffeine is going live.

If you notice changes in your website rankings don't get surprised it's Caffeine, Google Caffeine ranking results will dance around a while until it is fully available.

Happy ranking's at Google Caffeine :-)

UPDATE:- Matt Cut's says Expect Caffeine to get merged with universal search result after Christmas Holidays, also Caffeine results will be active only at 1 datacentre initially, Google will roll back to all datacentres later on.